Inker adjuster for marking machines



y 1951 R. T. ANDERSON 2,550,901

INKER ADJUSTER FOR MARKING MACHINES Filed Dec. 18, 1945 INV EN TOR.

ATTGW/VLY Patented May 1, 1951 INKER ADJUSTER FOR MARKING MACHINESRussell T. Anderson, Denver, 0019., assignor, by

mesne assignments, to Perfection Supply Company, Denver, 0010., acorporation of Colorado Application December 18, 1945, Serial No.635,842

1 Claim.

i This invention relates to an adjusting device "for theinker of alaundry marking machine of the type illustrated in United States PatentsNos. 2,136,461 and 2,157,497, and has for its principal object theprovision of an exceedingly rugged' device that will withstand thestrains to which such markers are subjected and by means of which thedegree of inking or the amount of inksupplied to the printing typecan beaccurately adjusted accordance with the type of work being done and thesupply of ink.

Another object is to provide a positive inking dcvice for markingmachines which will contact the typein advance of each marking and whichwill automatically move out of the path of the articlebeing marked.

Otheriobjects and advantages reside in the detail construction of theinvention, which is designed for simplicity, economy, and efliciency.These will become more apparent from the following. description.

In the following detailed description of the invention,; reference ishad to the accompanying drawing" which forms a part hereof. Likenumeralsrefer to like parts in all views of the drawing and throughoutthe description.

In the drawing:

Fig 1 is a side view of a conventional laundry marking machine to whichthe invention is applied;

Fig. 2 is an enlarged detail sectional view, taken on the line 2-2, Fig.1;

Fig; 3 is a similar sectional view, taken on the line 3 -13, Fig. 2; and

Fig. 4 is a horizontal sectional view, taken on the line 4-4, Fig. 3.

In the drawing typical parts of a conventional marking machine aredesignated by numeral as follows: housing I0, type setting levers II,index scale I2, type wheels I3, type wheel guards I4, supporting baseI5, impression pad l6, impression handle I'l, impression arm I8, upperinking toggle frame I9, lower toggle frame 33, inking toggle bolt 20,inking toggle spring 2|, inking pad 22, inker connecting link 23,impression arm hinge pin 34, link hinge pin 36, and ink pad wheels I3 tobring the desired series of letters or numbers in printing alignment onthe type wheels. The article to be marked is then placed across theimpression pad I6 and the handle I1 is forced forwardly to swing theimpression arm I 8 toward the type wheels I3. As the arm movesforwardly, the connecting link 23 pushes the toggle bolt 20 forwardly toswing the two toggle frames about the hinge pin 34 and toward the typewheels so as to bring the inking pad 22 against the aligned type faces.Further movement of the impression arm I8 forces the toggle bolt 20still further forwardly breaking the toggle and allowing the ink pad toswing downwardly from the inked type so that the article on theimpression pad I6 can be forced thereagainst as shown in Patent No.2,136,461. The handle I1 is then swung back to its original positionallowing the spring 2| to straighten the toggle frames l9 and 33 back tothe position of Fig. 1.

This invention is designed to allow the pressure with which the ink pad22 engages the type to be adjusted and varied and is also designed tolift the ink pad from the type before it moves downwardly to theinoperative position.

The invention comprises a roller supporting frame 24 which is preferablystamped from sheet metal to a V-shaped cross section so as to extendacross the back of and partially enclose the upper toggle frame I9. Theframe 24 is bifurcated at its lower extremity and bent forwardly toprovide two bolt ears 25 through which the extremities of the togglebolt 20 pass. The upper extremity of the frame 24 is attached to the inkpad bracket 35 by means of two adjustable tension screws 23 which arethreaded into the brackbracket 35. The ink pad supporting bracket is et35. A compression screw 3| is threaded through the frame 24 and bearsagainst the back of the pad bracket 35. The screw 3| is provided with ajam nut 32 to lock it in any desired position. The upper portion of theframe extends forwardly at each side of the upper toggle frame I9 toform two roller ears 2?. A flanged roller 28 is pivotally mounted on theinside face of each roller ear 2! upon a suitable pivot member 29.

A notch 30 is formed in each type wheel guard I4 in the path of therollers 28. The rollers 28 contact the bottoms of the notches 30 at thetime the inking pad 22 contacts the aligned type faces. The pressure ofthe latter contact can be adjusted by adjusting the tension screws 26,the compression screw 3| and jam nut 32, that is, should greaterpressure be desired between the type faces and the ink pad, the screws26 are loosened and the screw 3! is tightened to move the rollers 28closer to the ink pad.

The device operates as follows: As the impression arm 18 is swungforwardly, the connecting link 23 forces the straightened toggle IQforwardly until the inking pad 22 strikes the type faces and the rollers28 enter the notches 30. Further movement of the impression arm l8causes the toggle [9 to break forwardly at the toggle belt 25. Thispulls the rollers 28 downwardly causing them to climb out of theirnotches 3% to lift the ink pad from the type faces. The rollers thentravel downwardly beneath the type wheel guards [4 so as to be out ofthe path of the article as it strikes the type.

While a specific form of the improvement has been described andillustrated herein, it is de-' sired to be understood that the same maybe varied, within the scope of the appended claim,

without departing from the spirit of the invention.

Having thus described the invention, what is claimed and desired securedby Letters Patent is:

An inking device for laundry marking machines of the type having aninking pad supported on the upper extremity of a two-part toggle arm andpositioned between type wheels and a platen oscillatahle to and fromprinting position, comprising: a toggle bolt joining the two parts ofthe toggle arm; connecting means extending from said toggle bolt to aconnection with said platen and acting to urge said toggle arm and itsassociate ink pad into type-inking position as said platen is moved toprinting position, and thence to break the toggle when the contact ofsaid ad 4 with said type wheels prevents further movement of the pad; aroller frame hingedly mounted at its lower extremity on said togglebolt; an ear extending forwardly from the upper extremity of said frameat each end of said inking pad; a roller rotatably mounted on each earand extending forwardly from said pad; roller-receiving means at eachside of said type wheels for receiving and guiding said rollers aroundsaid type wheels after said toggle is broken; and adjusting screwsextending from the upper portion of the roller frame into the upper partof the toggle arm for moving said roller frame forward and back relativeto said pad to vary the contacting position of said rollers relative tothe inking position of said pad.

RUSSELL T. ANDERSON.

REFERENCES CITED The following references are of record in the file ofthis patent:

UNITED STATES PATENTS Number Name Date 908,847 Dixon 1 Jan. 5, 19091,179,797 Bell Apr. 18, 1916 1,196,114 Hume Aug. 29, 1916 1,436,599Mathiasen Nov. 21, 1922 2,136,451 Petty Nov. 15, 1938 2,150,744 MarchevMar. 14, 1939 2,157,497 Petty May 9, 1939 2,213,130 Presby Aug. 27, 19402,251,354 Gettman Aug. 5, 1941 2,454,823 Malott Mar. 22, 1949

